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Search Results: 1 - 10 of 138872 matches for " Rajani K "
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Study of Position, Shape, Size and Incidence of Mental Foramenand Accessory Mental Foramen in Indian Adult Human Skulls
Singh,Rajani; Srivastav,A. K;
International Journal of Morphology , 2010, DOI: 10.4067/S0717-95022010000400025
Abstract: paralysis of the mental nerve is one of the principal complications of surgery of the mandibular canal and mental foramen region. therefore, identification of mental foramen is important for dental surgeons in nerve block and surgical procedures like apico curettage of mandibular premolars, amalgam filling, peridental surgery etc. to avoid injury to neurovascular bundle. accessory mental foramina tend to exist in the apical area of the first molar and posterior or inferior area of the mental foramen. the accessory branches of the mandibular canal showed common characteristics in the course of gently sloping posterosuperior direction in the buccal surface area. verification of the existence of accessory mental foramina would prevent accessory nerve injury during periapical surgery. in root canal treatment, the possibility of accessory mental foramina-related nerve paresthesia seems low unless the mental foramen and mandibular canal are injured. therefore, prior surgical knowledge of morphology and morphometry of mental and accessory mental foramen peculiar to particular block may enable effective mental block anaesthesia. besides this, as mental foramen and accessory mental foramen have been found to vary in position in different ethnic groups. so, it is important to study the morphology and morphometry of mental foramen and accessory mental foramen. hence this study was carried out. present study was conducted using dried adult human mandibles of both sexes. size and position were determined using digital vernier callipers. incidences and shapes of mental foramen and accessory mental foramen were also observed. mental foramen was present in all one hundred observed mandibles and it is bilateral. accessory mental foramen was present in 8 percent on left side while on right side, it was 5 percent. none of the mandibles presented with bilateral accessory mental foramen. shape was predominantly round with 94 percent on right side and 87 percent on left side while it was
An Unusual Case of Unilateral Atlanto-Occipital Assimilation with Skull Asymmetry
Rajani Sangeeta J,Suttarwala Ila M,Rajani Jitendra K
National Journal of Medical Research , 2012,
Abstract: A congenital fusion of the atlas to the base of occiput is defined as assimilation of Atlas. This condition is due to failure in segmentation and separation of the most caudal occipital sclerotome and first cervical sclerotome during the first week of fetal life. This is a case of unilateral fusion of left half of atlas with corresponding occipital bone and atlas is rotated and inclined. Skull showed asymmetries in various skull features on left side like change in size of neurovascular foramina, shifting of position of styloid process, reduction in size of middle cranial fossa along with corresponding petrous bone. Hence knowledge of position of various features of skull, beneficial to the clinicians, surgeons, neurologist and radiologist. [National J of Med Res 2012; 2(2.000): 238-240]
Plant DNA Recombinases: A Long Way to Go
Rajani Kant Chittela,Jayashree K. Sainis
Journal of Nucleic Acids , 2010, DOI: 10.4061/2010/646109
Abstract: DNA homologous recombination is fundamental process by which two homologous DNA molecules exchange the genetic information for the generation of genetic diversity and maintain the genomic integrity. DNA recombinases, a special group of proteins bind to single stranded DNA (ssDNA) nonspecifically and search the double stranded DNA (dsDNA) molecule for a stretch of DNA that is homologous with the bound ssDNA. Recombinase A (RecA) has been well characterized at genetic, biochemical, as well as structural level from prokaryotes. Two homologues of RecA called Rad51 and Dmc1 have been detected in yeast and higher eukaryotes and are known to mediate the homologous recombination in eukaryotes. The biochemistry and mechanism of action of recombinase is important in understanding the process of homologous recombination. Even though considerable progress has been made in yeast and human recombinases, understanding of the plant recombination and recombinases is at nascent stage. Since crop plants are subjected to different breeding techniques, it is important to know the homologous recombination process. This paper focuses on the properties of eukaryotes recombinases and recent developments in the field of plant recombinases Dmc1 and Rad51. 1. Homologous Recombination The homologous recombination (HR) is a fundamental, vital and conservative process in all living organisms. This process is important for generation of genetic diversity, maintaining the genomic integrity as well as repairing the double strand breaks which are generated by the action of ionizing radiation, exposure to genotoxic chemicals, errors in replication, and during cell development (Figure 1) [1, 2]. Figure 1: DNA damage caused by different genotoxic agents. The figure shows the formation of double strand breaks (DSBs) in dsDNA when exposed to DNA damaging agents like genotoxic chemicals, ionizing radiation as well as errors in the replication, programmed and unprogrammed action of nucleases. The importance of homologous recombination in prokaryotes and eukaryotes was realized a long time ago. Mutants sensitive to DNA damaging agents like UV and ionizing radiation showed deficiency in recombination [3–5]. The complex nature of the process and crosstalk between homologous recombination and other pathways like transcription, repair, and replication posed a great challenge to the biologists [6]. The genetics and biochemistry of HR process was best understood in simple prokaryote E. coli, which shows high frequency of homologous recombination. Various recombination deficient mutants were generated
Urinary tract infection due to Arcanobacterium haemolyticum
Ciraj A,Rajani K,Sreejith G,Shobha K
Indian Journal of Medical Microbiology , 2006,
Ecosystem Responses in the Distribution of Black Clam (Villorita cyprinoides) Beds in Vembanad Estuary during Environmental Changes Using GIS and RS  [PDF]
Thankam Theresa Paul, Grinson George, A. Dennis, N. R. Athira, R. S. Biradar, Rajani Khandagale, K. G. Padmakumar
Journal of Geographic Information System (JGIS) , 2017, DOI: 10.4236/jgis.2017.93015
Abstract: The biomass and distribution of black clam (Villorita cyprinoides) in Vembanad, a tropical estuary located along the southwest coast of India varied significantly. Sampling was done in freshwater-dominated zone in the south (distal) and brackish water zone in the north (proximal), during pre and post monsoon seasons. Clam biomass was estimated from samples, collected from different stations during the study period. Water transparency and temperature were measured at the sample sites. Water samples were collected and analysed for salinity, dissolved oxygen (DO), pH and hardness. There was a significant difference in the clam biomass during the two seasons in the distal zone, and those collected from the distal and proximal zones during pre-monsoon season. The data were further analysed to determine the factors affecting the clam biomass distribution in the two zones and seasons. Factor analyses, comparing the distal zone during two seasons and zonal variations were similar to earlier observations. Step wise regression analyses found that dissolved oxygen (adjusted R2 = 0.3) is the only variable affecting clam survival during pre-monsoon period in the distal and proximal zones. A geographic map of the region obtained from the Indian satellite sensor LISS (Linear Image Self Scanner) was used along with in situ data to map the results using inverse distance weightage model.
Automated Pulse-Based Diagnosis: Role of TIM Diagnostic Features  [PDF]
Rajani R. Joshi
Journal of Biomedical Science and Engineering (JBiSE) , 2014, DOI: 10.4236/jbise.2014.710076
Abstract: Emanated from the idea of reinvestigating ancient medical system of Ayurveda—Traditional Indian Medicine (TIM), our recent study had shown significant applications of analysis of arterial pulse waveforms for non-invasive diagnosis of cardiovascular functions. Here we present results of further investigations analyzing the relation of pulse-characteristics with some clinical and pathological parameters and other features that are of diagnostic importance in Ayurveda.
Dynamic Power Suppression Technique in Booth Multipliers
B.Rajani Kumari,,K.V. Ramana Rao
International Journal of Innovative Technology and Exploring Engineering , 2012,
Abstract: The SPST has been applied on both the modified Booth decoder and the compression tree of multipliers to enlarge the power reduction. This paper provides the experience of applying an advanced version of our former spurious power suppression technique (SPST) on multipliers for high-speed and low-power purposes. To filter out the use-less switching power, there are two approaches, i.e., using registers and using AND gates, to assert the data signals of multipliers after the data transition. The simulation results show that the SPST implementation with AND gates owns an extremely high flexibility on adjusting the data asserting time which not only facilitates the robustness of SPST but also leads to a 40% speed improvement. Adopting a Xilinx Spartan 3 Xc3s200 board the proposed SPST-equipped multiplier dissipates only 0.0121 mW per MHz in H.264 texture coding applications, and obtains a 40% power reduction and the overall utilization of the resources reduced to 26%.
Inducible clindamycin resistance among clinical isolates of staphylococci
Ciraj A,Vinod P,Sreejith G,Rajani K
Indian Journal of Pathology and Microbiology , 2009,
Abstract: Introduction: Clinical failure of clindamycin therapy has been reported due to multiple mechanisms that confer resistance to macrolide, lincosamide and streptogramin antibiotics. This study was undertaken to detect the presence of inducible clindamycin resistance among clinical isolates of staphylococci. Materials and Methods: The detection of inducible clindamycin resistance was performed by D-test using erythromycin and clindamycin discs as per CDC guidelines. Results: Among the 244 clinical isolates of staphylococci studied, 32 (13.1%) showed inducible clindamycin resistance and belonged to the MLSBi phenotype. Among the MLS B i phenotypes, 10 isolates were methicillin-resistant Staphylococcus aureus (38.4% of the total MRSA), 16 were methicillin-sensitive Staphylococcus aureus (12.9% of the total MSSA) and 6 were coagulase-negative staphylococci (6.3% of the total CONS). Conclusion: The test for inducible resistance to clindamycin should be included in the routine antibiotic susceptibility testing, as it will help in guiding therapy.
Efficient Use of Semantic Annotation in Content Based Image Retrieval (CBIR)
V. Khanaa,M. Rajani,K. Ashok Augustine Raj
International Journal of Computer Science Issues , 2012,
Abstract: Finding good image descriptors that can accurately describe the visual aspect of many different classes of images is a challenging task. Such descriptors are easier to compute for specialized databases, where specific prior knowledge can be used to devise a more dedicated description of the image content. On one side, there is rather a subjective problem of the visual content and on the other side there is the very practical need to find a good technical/mathematical description of this same visual content. Since there is no perfect description of visual content (even humans disagree when interpreting images), most methods try to find a good compromise in balancing the different aspects of image content. While image descriptors that concentrate on a single aspect of the visual content (color, shape and texture) are widely employed, we believe that image descriptors which include integrated contributions from several aspects perform better in terms of performance and of the relevance of the returned results to the expectation of the user. In this paper, we introduce the color weighted histograms that intimately integrate color and texture or shape and we validate their quality on multiple ground truth databases. We also introduce a new shape histogram based on the Hough transform that performs better than the classical edge orientation histogram. This is an added value which can improve considerably the quality of the overall results when used in combination with the weighted color histograms. In this paper we present the image descriptors (signatures) we use in our NWCBIR system and we emphasize the important connection that exists between the image descriptors and the quality of the results returned by the CBIR system.
Intestinal Ileus as a Possible Cause of Hypobicarbonatemia
Andres Serrano,Rajani K. Chilakapati,Alexander J. Ghanayem,Yemin Yuan
The Scientific World Journal , 2007, DOI: 10.1100/tsw.2007.39
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